Siemens SINUMERIK 840C Installation Instructions Manual page 651

9 Drive Servo Start-Up Application (as from SW 3)
9.3.3 Signal waveforms of function generator (as from SW 3)
D Step change (speed setpoint)
Fig. 9.11
Conditions
Operating mode
Signal type
ESD
MD
A
O
Explanation
On expiry of the settling time the speed setpoint is increased abruptly by the am-
plitude value from the offset.
On expiry of the measurement time, the setpoint signal is removed and the speed
setpoint reduced to zero with a delay via a filter.
9–30
Speed
setpoint
v
A
O
ESD
Position
character-
istic
s
: Speed setpoint (position controller
cycle)
: Step change
: Settling time
: Measurement time
: Amplitude
: Speed offset
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MD
SINUMERIK 840C (IA)
09.95
10.94
t
t